Automatic screen door hook



24, 1950 J. E. TOMLINSON AUTOMATIC SCREEN DOOR HOOK Filed June 27, 1947Patented Oct. 24, 1950 UNITED STATES PATENT OFFICE 2,526,979 AUTOMATICSCREEN DOOR HOOK John E. Tomlinson, Los Angeles, Calif.

Application June 27, 1947, Serial No. 757,399

1 Claim. 1

The present invention relates to automatic screen door hooks and itconsists in the combinations, constructions and arrangements of partsherein described and claimed.

It is an object of the invention to provide an automatic latch forscreen doors or the like.

A further object of the invention is the provision of a simple, compact,inexpensive and efficient closure latch.

Another object of the invention is the provision, in a latch, of asimple and effective means for unlatching the same.

Other and further objects of the invention will become apparent from areading of the follow- 2 25 formed longitudinally therein. The bolts 22are adapted to engage in the grooves 25. Integrally formed with the dog24 is an operating button 26.

In operation, it will be apparent that when the door is closed either byhand operation or by the operation of a sprin in the conventionalmanner, that the hook 16, due to its angular inner face 21, will rideover the detent l8 and fall into position thereover in such manner thatthe detent [8 will lie within the notch l1, thereby effectively latchingthe door. When it is desired to unlatch the door, the button 26 ispressed in- Wardly of the door l3 thereby causing the dog 24 nc p a i nken in conjun ion with h to move against the cammed portion 2| of thedrawings, in which: hook I6 and thereby causing the hook l6 to be Figure1 is an elevational view of an embodiraised at its inner end therebybecoming disenment of the invention, gaged from the detent I8 whereuponthe door Figure 2 is a plan view, partly in section, taken may be openedin the conventional manner. along line of gure 1 in the direction of theWhile but one form of the invention has been arrows, shown and describedherein, it will be readily ap- Figure 3 is an elevational sectional viewtaken parent to those skilled in the art that many along line 3--3 ofFigure 2, and minor modifications may be made without de- Figure 4 is anexploded perspective view illusparting from the spirit of the inventionor the trating the method of assembly of the invention. scope of theappended claim.

Generally, the invention comprises a latch con- What i claimed is;sistin of a hook pivotally Carried in a frame A device of the characterdescribed comprismemb u d in a (1001 the like and p ing a pair of platesmounted at either side of an ed to en a detent Carried y th lamb of aaperture in a door, a pair of bolts interconnecting d rpon the outerside of the door and carthe plates, a hook pivotally mounted in theinner ried by the frame is a slidably mounted detent m t d having acammed rear a dog hav g an outwardly extending Operating ing a pair ofgrooves adapted to slidably engage ton and p ed to engage at its inner da the bolts between the plates. a button formed inca P01431011 0f thehOOk y, When the tegrally with the dog and protruding through the buttonis pressed, the hook will be raised to disouter plate d adapted whenpressed inwardly engage from the detent carried by the jamb. to forcethe dog into engagement with the rear Ref m p t la ly t the dra end ofthe hook to thereby lift the outer end of there is shown therein a latchhaving an inner the hook against t ti of gravity, plate member Ill andan outer plate member ll JOHN E MLINS N, adapted to be mounted at eitherside of an open- V ing l2 formed in a door I3. The plate H) hasREFERENCES CITED integrally formed therein a pair of inwardly Thefollowing references are of record in the tending ears l4 which carry anaxle l5 therebefile of this patent. tween upon which is pivotallymounted a hook 16 which extends inwardly and is provided with UNITEDSTATES PATENTS a notch l7 adjacent its inner end and which is Number NDate adapted to engage with a) detent l8zzgflixed to a 4 95 NetschertJuly 14 1931 jamb [9 as, for example, y a screw The inner end of thehook I6 is provided with FOREIGN PATENTS a downwardly extending cammedend 2|. A pair Number Country Date of bolts 22 are adapted tointerconnect the 687,042 Germany Jan. 22, 1940 plates In and II and actas guides for a dog 24 1,399 Great Britain Nov. 25, 1893 having a pairof diametrically opposed grooves

